坡洪积成因碎石土的岩土参数探讨  

Discussion on the Geotechnical Parameters of Gravelly Soil Caused by Slope and Proluvial Deposits

作　　者：郁是瞻 YU Shizhan(Southwest Electric Design Institute Co.,Ltd.of China Power Engineering Consulting Group,Chengdu 610056,China)

机构地区：[1]中国电力工程顾问集团西南电力设计院有限公司,四川成都610056

出　　处：《电力勘测设计》2025年第4期79-83,共5页Electric Power Survey & Design

摘　　要：坡洪积成因的碎石土具有物质组成复杂、结构分布不规则以及试样难以采集等特性,给该类土体的研究带来一定的困难。通过对帮果换流站工程中进行的大量原位测试、室内试验资料进行分析,提出坡洪积成因碎石土的地基承载力与动力触探指标之间的相互关系,同时对水平推剪试验的经验公式进行修正,并最终给出抗剪参数的取值建议。The gravel soil caused by slope and proluvial deposits has characteristics such as complex material composition,irregular structural distribution,and difficulty in collecting samples,which brings certain difficulties to the research of this type of soil.This article analyzes a large amount of in-situ testing and geotechnical test data conducted in the Bangguo Converter Station Project,and proposes the relationship between the bearing capacity of the foundation and the number of cone dynamic penetration tests.At the same time,the empirical formula of the horizontal push shear test was revised,and a suggestion for the value of shear resistance parameters was finally proposed.

关 键 词：坡洪积成因 碎石土 地基承载力 抗剪参数 

分 类 号：TK01[动力工程及工程热物理] P642[天文地球—工程地质学]